.tool-bar {
  width: 400px;
  height: 100px;
  border: 1px solid black;
}

.btn {
  display: inline-block;
  width: 100px;
  height: 30px;
  background-color: bisque;
  border: 1px solid black;
  margin: 25px 30px;
  padding: 10px 10px;
}